Hose-reel



J.-B. McMULLlN.

HOSE REEL. APPLICATION FILED AUG.I3, Isis.

Patented Aug. 30, 1921.

4 SHEETS-SHEET I Jsephfi'.

, INVENTOR WITNESSES Afrqnutv ff /W J. B. McMULLlN.

HOSE REEL.

APPLICATION FILED AUG-l3, 19H?- 1,389,314.. I Patented Aug. 30, 1921.

' 4 SHEETSSHEET 3.

WITNESSES fma m;

.l. B. McMULLIN.

HOSE REEL. APPLICATION FILED AUGJS, 1919.

Patented Aug. 30, 192i.

.mt n' INVENTOR 4 SHEETS-SHEET 4.

ATTORNEY UNITED ST TES PATENT OFFICE.

JOSEPH B. 'MGMULLIN, or osKALoosA, IOWA, ASSIGNOR TOWESITERN' mmmmm.

' ING 00., or OSKALOOSA, IOWA; A CORPORATION or IOWA.

, HOSE-REEL.

Specification of Letters Patent. Patefited Aug, 3O, 1921 Applicationfiled August13, 1919. Serial No. 317,294.

T 0 all whom it may concern:

Be it known that I, JOSEPH l3. MCMUL- LIN a citizen of the UnitedStates, residing at (5skaloosa, in the county of Mahaska and State ofIowa, have invented a new and useful Hose-Reel, of which the followingis a specification.

This invention has reference to hose reels, and'its object is to providea reel and hose particularly adapted for use in connection withsupplying air under pressure for the inflation of automobile tires, butis at the same time susceptible of other uses.

The invention comprises a hose reel and stand therefor, which stand maybe of a character to permit it being located at or adjacent to a streetcurb so that the hose may be withdrawn from the reel for the purpose ofconnecting the hose to automobile tires for inflating them, thearrangement being such that on releasing the hose the latter willautomatically re-wind upon the reel in accessible but protectedposition. Ordinarily the hose is under the control of locking meanswhereby indiscriminate use of the hose is prevented and by providing acoin lock the assurance is had that the hose will only be used as neededand not be open to malicious use.

In order that the public may be notified of the service provided, a.suitable sign, visible either in daylight or at night, may be carried bythe stand and in addltion thereto a gage is provided indicating the airconditions available.

The invention will be best understood from a consideration of thefollowing detailed description taken in connection with the accompanyingdrawings forming partof this specification, with the understanding,however, that the invention is not confined to any strict conformitywith the showing of the drawings, but may be changed and modified solong as such changes and modifications mark no material departure fromthe salient features of the invention as expressed in the appendedclaims. a

In the drawings Figure 1 is an elevation of the hose reel. stand.

Fig. 2 is a vertical front to rear section of the upper portion of thestand and drawn on a. larger scale than Fig. 1.

Fig. 3 is a view slmllar to Fig. 2 but continued through the stand tothe base thereof Fig. 6 is an elevation of a coin-controlled mechanismuseful in .connection with the hose reel.

Figs. 7, '8 and 9 are detail views of the structure shownin Fig. 6.

Fig. 10 is a longitudinal section on "a larger scale than some'of theother figures, showing a valve structure for admitting air to or cuttingit off from the hose.

Fig. 11 is Fig.10. a

' casting.

Fig. 12 is a section on the line i21;2- of Fig. 10. Referring to thedrawings there is shown a base 1 which may be a casting of any suit-.

able shape or be otherwise formed than by The base 1 is designed to bemounted on a pavement near a curb or at any other suitable point. Risingfrom the base 1 is a column 2 whichmay also be a casting or 'be of othersuitable formation and this column mergesinto a casing 3, which, beingintended to house a hose reel 4, is of cylindrical shape in most part,to

avoid waste of material, although the hose.

reel casing 3' need not necessarily be of such shape. Moreover, thecasing 3 may be offset laterally with respect to the column 2, becauseof certain parts which are located within the column to one side of thehose reel 4. Various mechanisms are located within the column 2 andeasing 3, and for convenience of manufacture and to properly protectsuch mechanisms as well as to integral part of the casing. The plate 7is providedwith an axialstud 8 from which a section on the line 11+11 ofrender them readily accessible whenvdesired,

to the stud and extending toward the-other face or coverplate 5. Mountedon the arthere projects anarbor 9 in'fixed relation bor 9 is a hub 10carried by roller bearings 11 between the hub and the arbor. One end ofthe hub has an inturned flange 12 for confining a set of roller bearings10 and there is another set of such roller bearings near the oppositeend of the hub, separated from the first-named set by a spacing sleeve13.

The outer end of the hub 10 is internally screw-threaded to receive ahollow plug 14 and this plug is closed at the outer end by another plug15 leaving a chamber 16 between the two plugs. At one side of the plug14 there is formed a nipple 17 to which is screwed a pipe 18. The arbor9 is provided with an axial passage or bore 19 extending throughout thegreater portion of its lengt and opening at the outer end of the arborclose to the plug 14. Screwed into or soldered in the open end of thebore 19 is a pipe or tube 20 extending into the chamber 16 through thebase of the plug 14 and packed, where passing through the bottom of theplug 14, by suitable packing material 21 held in place by a gland 22. Inthis way the hub 10 may readily rotate about the arbor 9 without dangerof leakage between the bore 19 and the chamber 16 and with free assageof air from the bore to the chamber.

ormed on the hub is a radial circumferential flange 23 carrying anannulus 24 forming one face plate of a hose reel. Attached to the faceplate 24 by means of rivets 25 and spacers 26, or in any other suitablemanner, is another annulus 27 forming the opposite face plate or wall ofthe hose reel. The arrangement is such that the hose reel is supportedby the one flange 23, although formed of two spaced face plates solocated as to receive a hose 28 between them.

When the hose is wound on the reel it forms a spiral as is customary.One end of the hose is extended through and held by a li 29, shown inFig. 3, while the other end of the hose carries a nipple connection 30such as shown, described andclaimed in my application Number 310,144,for tire pump connection, filed July 11, 1919.

The casing 3 is provided at a suitable part of it, say, at the upperportion near one side, with an outstanding neck 31 through which thehose 28 is carried, and a ball 32 or other stop meanson the hose outsideof guiding and retaining rollers 33 in the neck 31 prevents the completeindrawing of the hose into thecasing 3 and also avoids injury to thenipple connection 30, leaving the latter exposed to an extent permittingit, to be grasped by the hand of the user. The pipe 18 at the end remotefrom the plug 14 is connected to the inner end of the hose 28 in amanner that the pipe 18 and hose 28 are, always in communication. Sincethe pipe 18 rotates with the hose reel such connection is never .brokenand no strain occurs on the parts. j

The hub 10 is provided with a circumferential series of gear teeth 34which are elongated in the direction of the, length of the hub tofacilitate the making of the casting. At one point the continuity of theteeth is broken by a circumferential groove 35 to accommodate acircumferentially elongated tongue 36 formed on the inner surface of ashield 37 overlying the gear teeth on the hub. This shield is made fastto the stud 8 by screws 38 or otherwise. Meshing with the gear teeth 34is agear wheel 39 carried by a drum 40 inclosing a spiral spring 41. Thedrum 40 with the spring 41 is mounted upon a hub 42 in turn carried by aspindle 43 projecting from a boss 44 on the inner face ofthe plate 7.The arrangement is such that as the hose is withdrawn, from the hosereel the hub 10 is rotated and through the gear teeth 34 and gear wheel39 the spring drum 40 is also rotated, thus winding the spring 41, whichlatter, when the device is originally installed, is placed under sometension, at least sufficient to retract the hose after having beenpulled out from the casing 3 for use. One face of the drum 40 isprovided with a spiral groove 45 shown in Figs. 3 and 4 and in thisgroove there is engaged a pin 46 projecting from one arm 47 of a lever48, the pin 46 being located about midway of the length of the arm 47.Formed on the grooved face of the spring drum 40 is a socket 49containing a compression spring 50 serving as a buffer, this sprin beingin the path of the, pin 46 at one limit of its movement along the groove45. When the hose 28 is fully retracted the pin 46 is at the socket 49and engaging the spring 50 lodged limit of its movement toward the leftas seen" in Fig. 3. When the hose is withdrawn from the reel, the springdrum is given a clockwise movement thereby causing the groove 45 topropel the pin 46 and with it the arm 47 toward the right. A stop 51 inthe column 2 limits the movement of the arm 47 toward the left in Fig.3. In the path of the outer or lower end of the arm 47 which end isprovided with an antifriction roller 52, is a beveled extremity 53 ofone arm 54 of a rock lever 55 having the other or short arm 56 at anangle to the long arm 54 so that the lever 55 is in the nature of abell-crank lever.

The purpose of the lever 55 is to cause the actuation of a valvestructure 57 shown on a small scale in Fig. 3 and on a larger scale inFigs. 10, 11 and .12, to which reference is particularly had in thefollowing description of such valve. The valve 57 comprises a castingincluding two chambers 58 and 59 respectively,which may be arranged sideby side for convenience of construction and compactness. The chamber 58ispermanently closed at one end and at the other end is closed by ascrew plug 60. The interior of the chamber is provided with a series ofcircumferential grooves 61 all joined along the side toward the chamber59 by a groove 62. lVithin the chamber 59 there is lodged a cylindricalscreen 63 including all the grooves 61 and at one end opening through aport 64 into a pipe connection 65 to which a pipe 66 is made fast. Thepipe 66 is intended to and may be assumed to-be connected to a source ofair under compression, such as is provided at the usual air stations.The chamber 58 is connected to the chamber 59 through a port or passage67 intermediate of its length.

' Within the chamber 59 there are located two washers or packing members68 and 69 respectively. The packing member 69, which may be in the formof a rubber washer, is lodged against a shoulder 70 formed in the wallof the chamber 59 and the packing member 68 is lodged against a screwplug 71 forming a closure for the corresponding end of the chamber 59.The two washers 68 and 69 are separated by a spacing sleeve 72 whichalso serves in connection with the plug 71 to tightly lodge the twowashers in the chamber 59 against the possibility of leakage by them.The spacing sleeve 72 has an exterior circumferential groove 73 and thisgroove is connected with the interior of the sleeve at intervals bypassages or ports 74 so that the interior of the sleeve has freecommunication with the groove 73. Through the wall of the chamber 59there is a port or passage 75 with which there communicates a pipe 76ultimately connected to the bore 19 of the arbor 9, as shown in Fig. 4.Extending through the plug 71 is a rod 77 also extending through'thepacking washers 68 and 69 into that end of the chamber 59 with which theport 67 communicates. The washer 69 has a conical face 78 forming avalve seat for a valve 79 engaged by the neighboring end of the rod 77.The valve 79 is constantly urged toward the valve seat 78 by acompression spring 80 between the Valve and the inner wall of thechamber 59 remote from the plug 71. The last-named end of the chamber59has a port 81 therethrough terminating in. a nipple 82 which, by meansof a coupling 83, is made fast to a pipe 84, which latter, as shown inFigs. 2 and 3, is carried up through the casing 3 and into a post 85 toa pressure gage 86 near the upper end of the post' and so arranged as tobe readily visible to an observer who may at any time ascertain thepressure within the pipe 84. The post 85 is surmounted by a globe 87,which may be of glass or other suitable light-transmitting material,containin-g insignia 88 to indicate the purpose ductedinto the tire.

angle of the whole structure. In the special instance shown in thedrawings, the insignia consists of the words Air service therebyinforming the reader that air for charging tires or the like may beobtained from the device. Within the globe 87 there is contained anelectric lam 89 fed by current delivered through a cont ucting cord 90coming from any suitable source of electric supply.

The end of the rod 77 outside of the chamber- 59 has a screw-threadedportion 91'carrying a nut 92 which may be utilized as an abutment forthe arm 56 of the lever so that when the lever 55 is actuated by thearm47 the rod 7 7 is moved through the washers 68 and 69, causing a likemovement of the valve 79.

The rod 77 adjacent to the end engaging the valve 79 has a longitudinalbore 93 with branches 94 and 95 leading to the exterior of the rod. Thebranch 94 opens into the interior of the spacing sleeve 72. The branch95 opens into the interior of the valve 79 which is chambered for thepurpose. WVhenever the valve 7 9 is opened there is communicationbetween that portion of the chamber 59 communicating with the pipe 8tand the pipe 76. In this manner air under pressure from the source ofcompressed air may be conducted, when the valve 79 is opened, into thechamber 58 through the screen or strainer 63. thus preventing anythingbut clean air entering the chamber 58 within the screen 63. This airthen passes by way of the port 67 into the compartment 59 from which theclean air passes by the valve 79 through the ports 95. 93 and 94respectively, to the pipe 76 which finally conveys the air to the hose.and. assuming that tie latter is withdrawn and applied to the valve.nipple of an automobile tire, the air is conis indicated on the gage 86by way of the tube or pipe 84, chamber 59, passage 67, chamber 58 andpipe 66.

While the lever 48 may be actuated or controlled in any suitable way, byhand or otherwise, it provides a convenient means wherebycoin-controlled mechanism may be utilized, such mechanism being bestshown in Figs. 6 to 9 inclusive. I

At asuitable point within the casing 3 is located a compartment .96entered by and containing a coin chute 97. The coin chute in theparticular showing of the drawings is upright, although this is not atall obligatory, and below the coin chute there is located a stud 98.Mounted on the stud is one end of a pendent rock arm 99 having anextension or finger 100 normally so situated as to be in line with aseries of notches 101 in the outer margin of the face plate or annulus24, whereby the face plate 24 is in effect a ratchet wheel and thefinger '100 serves as a ratchet acting as a stop preventing rotation ofthe hose reel in one direction but permitting it to rotate freely in theother direction. Mounted on the stud 98 is a rock lever 102 shownseparately in Figs. 7 and 8. The lever 102 has a passage or perforation103 about midway of its length fitting the'stud 98. At one end the lever102 is provided with an expanded plate-like head 104 with a perforationor passage 105 therethrough. At the other end the lever 102 has an angleextension 106 from the extremity of which there is an angular projection107. Adjacent to the projection 107 the extension 106 carries a stud 108serving as a pivotal mounting for a latch plate or trigger 109 held tothe stud by a screw 110 or otherwise. The latch plate 109 is heldyieldably in a desired osition by a spring 111 and adjacent to t espring carries a laterally projecting pin 112. The arm 99 is connectedto the lever 102 by a spring 113.

Mounted inthe compartment 96 so as to project through the wall of thecasing 3 is a push-button 114, having a stem extension 115 projectinginto the chute 97 but normally out of the path of a coin inserted in thecute. A spring 116 on the stem of the push-button 114 is arranged tohold the latter in the normally projected position accessible to anoperator. The stem extension 1151s in line with the passage 105.

The lever 48 has an arm 117 at an angle to the arm 47 and said arm 117terminates in a laterally expanded cam head 118 extended into thecompartment. Fast to the hub 42 to which the spring 41 is secured, is anarm 119 whereby the initial tension of the spring 21 may be adjusted. Tohold the arm 119 in any desired position of adjustment,

the free end of the arm carries a screw 120 capable of setting in anyone of a series of perforations or sockets 121 in the casing 3.

In considering the operation of the hose reel structure, it may beassumed that the structure is mounted in accessible position, say,adjacent to a street curb and that the spring 41 is suitably adjustedand the hose 28 1s wound on the reel within the casing 3 with only thenipple connection or chuck 30 exposed for access. If, now, a persondes1r es to use the hose for inflating a tire, a suitable coin isdropped into the coinchute 97 and its progress is arrested opposite thehead 104 of the lever 102 in the path of the stem or extension 115 ofthe push-button 114. If no coin be introduced the push-button may bemanipulated, and the stem 115 will pass freely through the perforation105 and perform no function. With the coin in place, pushing on thebutton 114, causes the coin to engage the head 104 and thereby rock thelever 105 against the action of the sprin 111. The lever 102 engages alug 122 on the arm 99, thus rocking the latter in a direction to clearthe finger 100 from the particular notch 101 in which the finger rested,so that the hose reel is no longer locked but may be freely turned. Asthe lever 102 is'moved in the manner described the latch plate ortrigger 109 is brought into engagement with another lug 123, therebyholding the arm 99 and lever 102 in the position to which they have beenmoved by the push-button114, and on release of the push-button it isreturned to the first or projected position by the spring 116. The coinoriginally engaged by the push-button then drops through a slot 124 outof line with the coin chute and may find lodgment in a suitable coinbox. The hose reel being thus released permits the withdrawal of thehose to any needed extent and the rotation of the hub 10 causes thewinding of the spring 41 through the intermediary of the teeth 34 andthe gear wheel 39. As the unwinding of the hose proceeds with thecorresponding winding of the spring 41, the spiral groove 45 on thespring drum, by engaging the pin or stud 46 on the arm 4( causes theroller 52 to ride along the beveled edge 53 of the arm 54 of the lever55, thereby rocking the arm 56 in the direction to move the rod 77sutficiently to open the valve 79. Now, air under pres sure coming froma suitable reservoir, not shown, through the pipe 66, may fiow into thechamber 58 and out therefrom through the port 67, being in the meantimecleansed or filtered by the strainer 63. A portion of the air flows byway of the port 81 through the pipe 84 to the gage 86, thus indicatingthe air pressure. Another portion 81 of the air passes around the valve79 through the ports 95, 93' and 94 to the pipe 76,, and thence to thepassage 19, tube 20, chamber 16 and pipe 18 into the hose 28. However,the air cannot esca e from the hose becaus of the presence of the chuckor nipple coupling 30. This chuck is of a character permitting thepassage of air from the hose into the inner tube of the tire whenapplied to the inner tube nipple, but automatically closes as soon asthe chuck is removed from the inner tube nipple. During this time thehose is held extended against the pull of the spring 41. As soon as theoperator is finished with the hose he has but to let go of it,whereupon, the expansion of the spring 41 causes a turning of the hosereel and a rewinding of the hose thereupon until further movement of thehose is stopped by the engagement of the enlargement 32 with the rollers33. The re winding of the hose causes the reverse movement of the arm 47of the lever 48 and a corresponding reverse movement of the arm 117 andthe head 118, which latter then engagesl g the latch plate or trigger109 and releases it from the stop '123, thus permitting the lever 102 toreturn to its first position and the arm 99 to also return to its firstposition together with the lever 1 02. The'fingerlOO is, by thisoperation, moved into a notch 101 thereby preventing a re-withdrawalofthe hose from the reel and lock the parts all in the first position fromwhich they-maybe released only by the deposition, of another coin.

,WVhile theugage 8(5- and lamp 89 may be supported in various ways it ispreferred to provide a lug 123 projecting inwardly in the column 85 andthis lug is provided with a passage. to accommodate the bolt 124threadedlinto, the back of the casing of the gage 86,; thereby holdingthe latter in the column: ,locknut 125 servesto-hold the artsfirmlytogetheivandvalso to clamp one egof anangle bracket 1-2.6 to the lug123,

theangle bracket being-long enough-"torise into the globe 87 and theresupportthe lamp socket 127. in turn receiving the electric .nYVhile thehose reel structure has been scribeduas useful in" connection witlr airhoseit'is to be understood that it may be used in-connection with hosecarrying other fluids than air, although it is particularly useful -inconnection with service stations 1 or garages where: air under pressureis customarily provided 'for the inflation of automobile tires, e

-. The valve structureshown more particularly in Figs-10,11 and 12, andalso appear-- I inginFig; 3,"forrnsthe subject matter of and is claimedin another application, Serial No. 404,071, filed August 17 1920, forvalve device for hose reels, and constitutes a division ofthis'application. v

What is claimed is 1. In a hose reel structure, a hose reel providedwith a hub having-gear teeth thereon with a circumferential groove inthe gear teeth-,a spindle carrying the hub, a spring drum with a gearwheel thereon engaging the gear teeth, and a shield overlying the earteeth and provided with a tongue entermg the groove in the g ar teeth tohold the hub-on the spindle. r

2; A hose reel structure, comprising an upstanding basicmember, an arborproject ing'vlaterally-from' the basic member, a hose reel having a hubmounted on the arbor and provided withgear teeth thereon, -a spring drumcarried by the support at one side of the arbor and having gear teethmeshing with the gear teeth on the hub, a spring in the drumhavinga-constant tendency to hold the hose taut when withdrawn from thedrum, manipulating means connected to the spring in coactive relation tothe support for varying the tension of the spring, and fluid conductingmeans for conducting fluid under pressure to hose on the reel. v

l 3. A hose reel structure comprising a suitable support, a hose reelcarried by the support and provided with a hub having gear valve secondnamed lever,

teeth thereon, a spring drum with a spring therein alsocarried by thesupport and provided with a gear Wheel meshing. with the gear teeth onthe hub, and means-connected to the spring in coactive relation to thesupport for varying the tension of the spring, said last-named meanscomprising a hub to which one end vo1 the spring is connected and anarm-fast to the hub and attachable to the support in different positionsabout the axis of the hub.

4. In a..hose-reel structure, a rotatable reel for hose connected to andactuated by hose on the reel, a spring drum geared to the reel forcausing winding of a spring in the drum by withdrawal of the hose on thereel, said spring drum having a spiral thereon, a lever engaging thespiral for actuation of the lever by rotative movements of thespringdrum, and a Vill"6 responsive to movements of the lever and providedwith means for connecting it to asource of fluid under pressure, saidvalve being connected to the hose for delivering fluid under pressurethereto.v

x5. A hosewreel comprising a drum for holding a coil of hose, a springdrum with table drum 'for containing a coil of hose,

a "spring drum containing a spring and connectedto the hose drum forwinding the spring by withdrawing the hose from the drum, a valve; 'foradmitting fluid under pressure to the hose, and means for control lingthe-valve comprising a rock lever with one end directly controlling thevalve,

another rock lever engaging the first-named rock lever and movable in. adifferent direction from said first-named rock lever to cause the firstlever to be moved by the second-lever, and a spiral on the spring drumcontrolling the second-named lever.

7. A hose reel structure comprising a ro- I tatable drum for containinga coil of hose, a spring drum containing a spring and connected to thedrum for winding the spring by withdrawing the hose from the drum, a

for admitting fluid under pressure to the hose, and means forcontrolling the valve comprising a rock lever with one end directlycontrolling the valve, another rock lever engaging the first-named rocklever 12 and movable in a different direction from said first-named rocklever to cause the first lever to be moved by the second lever, and aspiral on the spring drum controlling the one of the levers havtion,

with the elastic buffer in the path of the' pin, a lever having abeveled end in the path of the rock arm for engagement and actuation bythe latter, and a valve controlled by the lever for in turn controllingthe passage of fluid under pressure from a reservoir thereof to thehose.

9. A hose reel structure comprising a rotatable drum for a coil of hose,a spring drum, gearing connections between the spring drum and the drumfor the hose, said spring drum having a spiral on one face thereof, arock arm engaging the spiral at a point intermediate of the length ofthe arm, a reciprocatory valve for controlling the passage of fluidunder pressure from a supply thereof to hose on the reel, and a rocklever for actuating the valveand in turn actuated by the rock arm.

10. A hose reel structure comprising a rotatable hose-carrying drum witha peripheral series of detent devices,a rock arm having a noseprojection'normally constrained to engage a detent device to hold the'reel against rotation in one direction, manually operable means forreleasing the hose reel for rotation in the opposite direction, a valvedevice for controlling the flow of fluid under pressure to a hose on thereel, a rock lever for controlling the valve device and in turncontrolled by the manually operable means, and means under the controlof the hose reel for causing movements of the rock lever to open andclose the valve.

11. A hose reel structure comprising a rotatable drum for the hose, aspring drum connected to the hose drum for winding the spring bywithdrawing the hose from the hose drum, said spring drum havingaspiral' for controlling pressure to the hose,

on one face, a valve device the flow of fluid under a lever structurefor actuating the valve device and connected to and controlled by thespiral on the spring ing the drum against rotation in onedirecstructure, and manually operable means for releaslng the drum andlever structure to operation by the withdrawal of the hose from the hosereel.

12. In a hose reel structure, a hose 'reel provided with a hub having acircumferendrum, means for locksaid means also controlling the levertial series of axially elongated gear teeth, with the latter providedwith a circumferential groove near. one end, a spring drum carrying agear wheel meshing with the gear teeth on the hub,'a spindle on whichthe hub is mounted, and a tongue carried by a fixed part of thestructure and entering the spindle.

13. A hose reel structure comprising a suitable support, a hose reelcarried thereby, a spring drum with a spring thereinalso carried by thesupport, connections begroove to hold the reel on the tween the hosereel and spring drum for" causing one to move the other, and meansconnected to the spring drum in eoactive relation to the support forvarying the tension of the spring, said means comprising a hub to whichone end of the spring is connected and an arm fast to the hub, thesupport and arm having coacting means for securing the arm to thesupport in different positions to thereby vary the tension of thespring.

14. A- hose reel comprising a drum for holdinga coil or hose, a springdrum with a spring therein and connected to the reel for winding thespring by unwinding the hose, a spiral groove on the spring drumhavingan elastic buffer seated at one end, a valve for controlling theflow of fluid under p'ressu'reto the hose, and actuating means for thevalve engaging in and actuated by "the spiral groove with the buffer inthe path of the valve-actuating means in the direction in which thelatter ismoved by the spring.

' 15. A hose reel structure comprising a rotatable drum for containing acoil of hose, a spring drum containing a spring and connected to thehose drum for winding the spring by withdrawing the hose from the drum,a valve for admitting fluid under pressure to the hose, and means forcontrolling the valve comprising an angle lever with'one end directlycontrolling the valve,

a rock arm engagingthe angle lever at the end remote from that engagingthe valve,

the end of the rock arm engaging the angle lever having a range ofmovement length- Wise of the portion of the angle lever engaged by therock arm, with said angle lever beveled where engaged by the rock arm,and a spiral on the spring drum engaging and controlling the rock arm tocause movement thereof in a direction to actuate the angle lever.

16'. A hose reel structure comprising a rotatable drum for containing acoil of hose, a spring drum containing a spring and connected to thehose drum for winding the spring by withdrawing the hose from the drum,,a valve for admitting fluid under pressure to the hose, and means forcon trolling the valve comprising two levers in .-angular relation Withthe pivotsupports of the levers spaced apart and the ends of the leversremote from the pivots engaging, one lever controlling the valve and theother lever controlled by the spring drum, Whereby the valve isresponsive to the withdrawal of the hose from the hose drum and thereturn ofthe hose onto said drum.

In testimony that I claim the foregoing 10' as my own, I have heretoaflixecl my signature.

JOSEPH B. MOMULLIN.

